Find the relationship between the graphs of f and g. Consider amplitude, period, and shifts.
?
f(x) = cos 6x
g(x) = - 4 + cos 6x
?
A. g is a shift of f 4 units upward.
B. g is a shift of f 4 units downward.
C. The period of g is 4 times the period of f.
D. f is a reflection of g in the x-axis.
E. g is a shift of f 6 units downward.
Answer: B
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A. 
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